Dan Valentine
@danvalentine.bsky.social
56 followers 37 following 4 posts
PhD candidate at Uni of Bristol studying the atmospheres of exoplanets using JWST 🪐🌈☁️ | he/him 🏳️‍🌈 | Cymro 🏴󠁧󠁢󠁷󠁬󠁳󠁿
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danvalentine.bsky.social
New paper alert 🔔 If you like eclipse mapping and are excited for the future opportunities that Ariel will provide, then check it out!

(Bonus: writing an eclipse mapping proposal? We've ranked all the best eclipse mapping targets for both Ariel and JWST!)

arxiv.org/abs/2510.03147
Eclipse Mapping with Ariel: Future Prospects for a Population-Level Mapping Survey
Eclipse mapping is a powerful tool for measuring 3D profiles of exoplanet atmospheres. To date, only JWST has been capable of widely applying this technique, but as a general observatory, it is too ti...
arxiv.org
danvalentine.bsky.social
Stay tuned for future releases! 👀 (3/3)
danvalentine.bsky.social
This is only the first instalment in a series of work on this planet, wherein the DREAMS team aims to perform one of the most comprehensive atmospheric characterisations of any exoplanet to date, using data from a multitude of @NASAWebb instruments. ⭐️🪐🌈🔭 (2/3)
danvalentine.bsky.social
Check out this awesome work from the JWST-TST DREAMS team! Using a combination of @NASAHubble and @NASAWebb MIRI data, we made the first characterisation of a cloud species in a transiting exoplanet atmosphere: quartz clouds in the atmosphere of WASP-17b! 💨☁️🪐✨(1/3)

webbtelescope.org/contents/new...
NASA’s Webb Detects Tiny Quartz Crystals in Clouds of Hot Gas Giant
webbtelescope.org
Reposted by Dan Valentine
stellarplanet.bsky.social
Excited to share the 1st direct evidence of quartz clouds in the atmosphere of a transiting #exoplanet! With #JWST MIRI we found nanoparticles of quartz, SiO2, causing a spike in the planet's spectrum at 8.6 micron unveiling the Oxygen locked in the clouds
doi.org/10.3847/2041...
NASA’s Webb Detects Tiny Quartz Crystals in Clouds of Hot Gas Giant
webbtelescope.org